/*
 * Copyright (c) 2010, Oracle. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * * Neither the name of Oracle nor the names of its contributors
 *   may be used to endorse or promote products derived from this software without
 *   specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.helpdesk.controllers.util;

/**
 *
 * @author mbohm
 */
public class PagingInfo {
    private int pageSize = 5;
    //base zero
    private int firstItemIndex = 0;
    private int itemCount = -1;
    //base one
    private int currentPage;
    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }

    public int getFirstItemIndex() {
        firstItemIndex = currentPage*pageSize - pageSize;
        return firstItemIndex;
    }
    public void setFirstItemIndex(int a){
        firstItemIndex = a;
    }
    public int getItemCount() {
        return itemCount;
    }

    public void setItemCount(int itemCount) {
        this.itemCount = itemCount;
    }

    public int getCurrentPage() {
        currentPage = (firstItemIndex+pageSize)/pageSize;
        return currentPage;
    }
    public int getTotalPage(){
       int total =  itemCount /pageSize;
       if(itemCount % pageSize >0){
           total++;
       }
       return total;
    }
    public void nextPage(){
        if(getCurrentPage() *pageSize < itemCount) {
            currentPage ++ ;
        }
    }
    public void previousPage(){
        if(getCurrentPage() -1 > 0){
            currentPage --;
        }
    }
    public void go(int page){
       if(page < getTotalPage()){
           currentPage = page;
       }
    }
    public void goLast(){
        currentPage = getTotalPage();
    }
  
   
}
